\begin{table}%t2
%\centering
\par
\caption{The the photon absorption rate $n_{\gamma}$ for a typical ISM PAH molecule (at the distance from the star where the PAH emission is observed), and the minimum number of C-atoms per molecule needed for multi-photon processes to be significant ($n_{\rm min}$).\label{tab2}}
\begin{tabular}{lrrr}
\hline\hline
star      & \textit{FWHM} & $n_{\gamma}$ & $n_{\rm min}$ \\
          & [AU] & [s$^{-1}$]   & [C-atoms] \\
%\par
%& & & \\ % empty dummy entry for vertical spacing
\hline
%\par
%& & & \\ % empty dummy entry for vertical spacing
%\par
HD 97048  & $110\pm40$  & $\rm 0.079^{+0.116}_{-0.036}$  & $\rm 633^{+544}_{-377}$ \\
\par
HD 100546 & $140\pm50$  & $\rm 0.049^{+0.069}_{-0.022}$  & $\rm 1026^{+864}_{-602}$ \\
\hline
\end{tabular}
\end{table}